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For example, to make this
zone 12, enter "12" using the
number keys. The display will
then show the new zonal
range.
•
RESULT: NAC circuit controller A will be immediately activated if a fire is detected in zones
1,2,3,4,5,6,7,8,9,10,11 or 12.
•
The display will then automatically flash the next changeable item, which is the mode of operation. As this is
not numeric, use the "Change" key to change the mode.
Each press of the change key
will cycle through each of the
possible operating modes for
this output. For example.
•
RESULT: NAC circuit controller A will not be activated if a fire is detected in zones 1,2,3,4,5,6,7,8,9,10,11 or
12.
•
The ">" key can be used to move across the display. For example, if the mode is flashing "OFF / ON" then
the delay period can be modified by pressing the ">" key to select the delay time value. Then enter the
desired period using the number keys. The backspace "<" key moves back one digit - useful for correcting
errors when entering a numbers.
•
In addition to the ON and
OFF modes, the following
modes of operation are
available.
•
RESULT: NAC circuit controller A will be immediately activated only if two (or more) detectors go into fire in
zone 1, or two (or more) detectors go into fire in zone 2, etc.
The "Yes" key also automatically advances to the next zones to be defined.
Per NFPA 72 1999, paragraph 3-8.3.2.3.3.
Reference 'double knock' and 'cross zoning' options.
Systems that require the operation of two automatic detection devices to initiate the alarm
response shall be permitted, provided:
a) They are not prohibited by the authority having jurisdiction
b) There are at least two automatic detection devices in each protected space.
c) The Alarm Verification Function is not used.
5.7.3
Detector loop addressable NAC circuit controller units (SCC)
•
One or more addressable NAC controller units may be included on each loop of the system. Refer to the
relevant manufacturers' literature for precise details on how to wire these devices.
•
Open and short circuits on the NAC wiring are detected by the SCC module, logged, and displayed by the
control panel. Wiring faults on the loop are also detected by the panel and again logged and displayed.
•
Any SCC connected to the system can be configured to sound for fires in ANY zone in the system.
•
When SCC units are used, their zonal programming selection is shown by using the same configure "NAC"
option as the on board outputs.
For example, an SCC module
wired onto loop 2 at address
number 117 may be shown
as:
•
This shows all NACs wired into the SCC module located on loop 2 at address 117 will use ringing pattern
number 1.
© 2002 Radionics
D8024/D10024A Operation and Installation Guide
Page 29
D8024/D10024A
Programming
50616B
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